Machine for the manufacture of cardboard boxes



Sept. 4, 1923. 1,466,759

- G. RUBELLO MACHINE FOR THE MANUFACTURE OF CARDBOARD BOXES Filed Aug. 1, 1922 Gi Supp: RulbaL'Lo ENYOR HTIORHE 45 Figure 2 is a side .view'o-f the small hand fAe- B of Figure 3.

Patented Sept. 4, 1923.

UNITED STATES emsErrnnuBn'LLo, or MILAN, ITALY.

' MAC INE FOR THE MANUFACTURE or CARDBOARD Boxes.

Application filed August' 1, 1922. Serial No. 578,934..

'Toall'whomit may concern:

Be it known that I," GIUSEPPE Runnnxio, subject of the King of Italy, residing at Via Gustavo Modeno 6, Milan, Italy, have 5 invented certain new and useful Improvements in Machines for the Manufacture of Cardboard Boxes, of which the following is a specification. present invention relates to machines -l for'making boxes from cardboard tubes.

The essential object or purpose of the ma- :chine according to-jthis invention is to produce small rings of cardboard with a common rounded edge or with a projectingedge 51, on one of the ends of therings themselves andof the dimensions desired by the operator. The said small rings with the common successive application of the small base 1nsert'ed therein and the gummed' label, form .2 the box "well known in :commerce and used "in particular in pharmacy, perfumery and "for other specialties. Whereas by the system now in use the small ring, out out previously of suitable dimensions by means of 2 the apparatus'already in existence, is placed withthe bottom beneath the die so as to be provided thereby at the first stroke thereof with theflange and then by a second stroke thereof with the gummed label, the machine now about to be described is adapted to produce the small ringalready flanged, thereby economizing time to a considerable extent in the manufacture of the small box.

Another very important feature of this invention is the production, at the same time and by the same means, of small projecting flanged rings, for the production of which j special and complicated dies are otherwise necessary. 'A further advantage'is the price more simple and less costly.

construction of the machine according to this invention by way of example Figure 1 is a perspective view.

" heel and of part of the hanging'ap ar'atus or cylinder. j

H Figure 3 shows, partially in section,'the

details of the cone cylinder, and

Figure 4 is asection thereof on the line Figures 5 and 6 are a section and a front view respectively '01: the hanging apparatus or cylinder for the production of the small as shown in Figure 10.

of the dies to be used in the press which are rings of cardboard with the common round- .ed flange as shown in Figure 7.

Figure 7 1s a side view of the cardboard ring as produced by the apparatus shown at Figures 5 and 6.

Figures 8 and 9 are respectively affront .view of the said flanging apparatus or cylinder modified for the production of small rings of cardboard with a projecting flange Figure 10 is a side view of the flanged cardboard ring.

.As shown in the drawings, the machine is composed of the table of iron or cast iron 1, in which are bored the holes necessary for fixing the difi'erent parts and a larger hole 2 through which the work already cut out, falls into a basket.

In the lower part of the table 1 carried on its two standards 3 and 4, is mounted a suit able cross bar which carries two pedals one of which serves to operate the apparatus 5 for cutting out the cardboard tube, while the other serves to raise, by means of levers 6 and 7, the flanging apparatus 8 so that the workman can slip the cardboard tube on to the shaft 9, pushing it just up against the grooved cone 10 of movable headstock 11. The external grooving of the said cone 1O affords sufficient grip on the cardboard tube to enable it to be pushed while rotating towards the fianging apparatus 8 and subsequently to be returned.

The shaft 9 is carried on the bracket 12 in ball bearings between which are mounted two pulleys 13 and 14 the first one of which 7 (13) is a loose pulley and the second one 1 1) a fast pulley which transmits movement to the machine.

The shaft 9 carries on the one handon one of its ends the grinder 15 for sharpening, when needed, the tools for cutting out'the work, while the other end of the shaft. 9 projecting from the bearings is'extended' outwards for a length of about forty five centimetres and terminates in a screw 16 (see Figure 3) which serves to carry the cone cylinder 17.. In this extension of the said shaft 9 and along its whole length is cut the groove 18 in which slide the two projections 19 and 20 of the internal bearing of the movable headstock 11 with the grooved cone 10 for carrying the tube.

The said movable headstock 11 with the grooved cone for carrying the tube carries,

by a simultaneous to and fro and rotary movement, the tube in such a way as to enable the flange to be produced and cut successively without interruption. The said headstock is constituted by the post 21 which is adapted to move by sliding in the slot 22, to the right or left at will by means of a hand wheel 23 and the gear wheel shaft 24:,

as indicated by the arrows in the drawing This latter by sliding in the said groove produced of the same size.

26, is for the purpose of enabling the revolving bearing 25 on the shaft 9 to be brought'or moved to the right or left while both bearing and shaft rotate together.

This bearing 25 also carries in its interior, the two projections 19 and 20 referred to, which slide with a to and fro .movement in the groove 18 in the shaft 9, which groove while it acts as a guide for the said to and fro movement acts also as a retaining point for the projections 19 and 20 so that the rotary movement of the shaft 9 may be transmitted to the bearing 25 carrylng with it the grooved cone 10 and the cardboard tube.

The bearing 25 terminates, at one of its ends in a collar, and on the other end, which is screwethreaded, is screwed on the cone 10, the'circumference of which is variable according to the diameter of the cardboard tube to be cut out and has its exterior grooved so as to grip the tube internally and thus render possible the movements of the tube required for its manufacture.

The cone cylinder 17 and also the grooved cone 10 carrying the tube, varies always according tothe diameterof the tube to be cut out, and its cylindrical part is naturally of a diameter which is equal to the internal diameter of the tube itself. That it should act at the same time as a support is very important as it is on this cylinder that the flange is formed and this cylinder. keeps the tube equidistant from the centre of rotation. As shown in the drawing, the cone cylinder 17 terminates, on the conical side, in the cylindrical piece 28 of smaller diameter, which is introduced when the flange is being formed, into the corresponding tubular cavity 29 or 29 of the flanging apparatus or cylinder 8 or 8. This cylin 'drical piece 28 acts as a stop for theedge of the cardboard tube when it bends by pre venting it from continuing towind, By the action of the said stop all the small rings of cardboard which it is desired to cut are In the cone cylinder 17 is bored a hole 30 for the escape .ment is thrust against said teeth.

of air. The cutting out apparatus 5 is fixed to the table 1 exactlyj'beneath the cone 17. By means of three ovals out in the part where the said apparatus is fixed, it can be moved to the right or left to the extent of several centimetres according to the height of the small ring of cardboard which it is desired to cut out. This height can also be obtained by means of the cone cylinder 17 by screwing it more or less onto the shaft 9. l

Naturally by being able to vary the di aineterfof the cone .17 according to the diameter of the cardboard tubeto be cut out. the cutting tool can also be raised or lowered relatively thereto.

The'flanging apparatus 8 is mounted on the shaft 31, the screw-threaded, end of which acts as the centre does inan ordinary lathe, and carries on its'opposite end, the gear wheel 32 whichreceives movement through thegear wheel 33 from the small hand-wheel 34, by means of which the flan ging apparatuscan be moved forwardsor backwards, with rapidity according, to require-mer ts, This shaft 31 is carried by the two levers35 and 36 hearing on the shaft 37 which is carriedin the small support which is fixed to the table l. The flanging apparatus or cylinder 8, which serves to produce the'small rings with thecommon rounded edge (see Figures.5,.6 and 7);, ishollow and its diameter can be- Varied according to the diameter of thecardboard tube to be flanged and has in its interior, on a flat part of the said tubular cavity 29 the teeth ,39

which bend over and flange the cardboard tube when this latter in its rotary move- Against the bottom of the tubular cavity 29 bears the external surface ofthe cylindrical piece 28. In theflanging apparatus or cylinder 8 (see Figures 8, 9, 10) which produces the small rings with the projecting-edge, the teeth 39 are of greater width than'that of the cardboard tube to be flanged. (the said teeth 39.. being also adapted to-form the edge 40) so that the tube duringits manufacture, not being able tovbend to-v wards the lower part owing to the obstruction offered by the cylindrical part 28, is

compelled by the pressure of the'advance.

to extend over the said flange 4:0, for the whole width of this latter, and, in any case 'to bend towards the outer part so as to form the above mentioned projecting edge 41 of the small cardboard ring[(see.F1gure 10). r r

The said levers 35' and'36, which, as has 7 already been stated above, are pivoted on the shaft 37' and rotate with it to an extentwhich is sufiicient to enable them to be raisedso as to allow the cardboard tube to be slipped on to theshaft 9 are afterwards arrested in their rearward or descending movement and resume their normal position 7 relatively to the cone cylinder 17 by the screws 42 fixed on the extension of the small I support 38. These screws also serve to addined with accuracy.

justthe fianging apparatus upwards and downwards so that it can be arranged exactly opposite or at the same level as the tube soas to enable the flange to be pro- On the lever 7 are mounted the two spiral springs 43, 44:, for the (purpose of thrusting the lever 7 downwar s. r

V v The operator, seated in front of the mai chine, commences by depressing the pedal .so that by raising the flanging apparatus,

- he can slip the cardboard tube on and thrust it against the grooved cone 10. The cylinder 17, the diameter of which is equal to the diameter of the interior of tube, allows the operator to place the said tube in a suitable position and equidistant from the centre of flange thereon. Afterwards, after having withdrawn the flanging cylinder, by depress- "ing the other pedal the operator lifts the cutting tool and cuts the small ring of cardboard to the dimensions desired and by the same tube pushes it off the cylinder and causes it to fall through the hole 2. The

V movement takes place in an exactly similar manner until the cardboard tube is finished and a new one put in its place, when the operation is repeated and so on.

' Besides the system above described for producing the movement and the rotation of the. movable headstock 11, this movement may also be obtained by reversing the parts, that is to say, by providing a projection or camover the whole length of the part of the shaft 9 which projects and by forming a corresponding slot in the internal part of thebearing of the movable headstock 11. This cam on the shaft by entering the said slot transmits its movement of rotation and at the same time acts as a guide for the movement of the tube to the right or left as already explained.

What I claim and desire to procure by Letters Patent of the United States, is

1. A machine for the manufacture of cardboard boxes from tubes, comprising a supporting table, a bracket mounted on the table, a shaft carried by the bracket, a movable headstock on the table, a grooved cone carried on said headstock-for gripping and carrying the tube, a cone cylinder located on the end of the said shaft, Hanging means mounted on the table, and means also mounted on the table for cutting off each box.

2. In a machine for the manufacture of cardboard boxes from tubes, according to claim 1, the movable headstock having'tlie cone grooved to carry the tube, and the cone havingat the same time a to-and-fro and a rotary movement for the purpose of producing the fianging of the cardboard tube which rotates with it.

3. In a machine for the manufacture of cardboard boxes from tubes, according to claim 1, the cone cylinder, acting as a support for effecting the cutting of the tube itself and also for keeping the tube equidistant from the centre of rotation of the shaft itself, and a conical end formed on said cone cylinder and terminating in a smaller cylindrical portion constituting a stop for the flange and also producing thereon the projecting edge.

4. In a machine for the manufacture of cardboard boxes from tubes, comprising a supporting table, a rotating shaft mounted on the table, a cone cylinder on the shaft, flanging apparatus, mounted on the table and having a tubular cavity into which the cone cylinder is introduced when the flange is being formed, and means whereby the fianging apparatus itself can be raised in order to allow of the setting of the tube on to the said rotating shaft.

In testimony whereof I afiix my signature.

GIUSEPPE RUBELLO. 

